User Manual

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found at most hobby shops. This can also help prevent glitching and increase the life of your receiver and is the reccomended method most the
team racers.
The objectof the receiver cover is to completely cover all openings and crystal socket to keep water or fuel out. Any liquid that enters the
receiver can cause radio failure, keep the receiver dry.
THE CLUTCH BEARINGS included in the kit contain a special lubricant. If the clutch bearings need to be replaced it is important to only
replace them with the Team Losi clutch bearings LOSA6913. If a different bearing is used, or if you oil the standard clutch bearings, the
lubricant can migrate into the clutch. If lubricant comes into contact with the clutch it will slip and not function properly. If necessary, you may
clean the bearings with Motor Spray or Nitro Cleaner, and lubricate with one drop of Mobile1
TM
.
If you clean your truck with a silicone product like Armour-All, be careful to keep it out of the cluch and the fuel tank. This will cause the
clutch to slip and/or the Engine to run poorly.
THE BRAKE ROTOR on your XXX-NT AD2 should be inspected after every 2-3 hours of running. When the rotor wears to half the
original thickness, the rotor should be replaced. Attach the new rotor by following the instructions located in this manual.
THE GEAR BOX, or transmission, is the heart of every race car. The XXX-NT AD2 transmission is no exception. Although the XXX-NT
AD2 transmission is very efficient, there are certain adjustments that are necessary for top performance, the differential is the most important.
Several greases were tested for use in the differential and the ones that we found to work the best is included in the kit. These greases protect
the moving parts extremely well, while at the same time allowing the diff to operate smoothly. Since this differential is designed to be "self
aligning", it is extremely important to take your time while assembling it to make sure that all of the parts are properly seated into the correct
locations.
The XXX-NT AD2 includes a 51-tooth kevlar Spur Gear and 18-tooth Clutch Bell. The overall internal drive ratio of the transmission is 4.11.
To calculate the final drive ratio, first divide the spur gear size by the pinion size. For this case divide 51 (Spur Gear size) by 18 (Clutch Bell size)
51/18 = 2.83, This tells you the external drive ratio. Next, multiply the external drive ratio by the internal drive ratio (4.11), 2.83 x 4.11 = 11.63.
This means with a 51-tooth Spur Gear and 18-tooth Clutch Bell the overall drive ratio is 11.63.
ABOUT THE DIFFERENTIAL Never allow the diff to slip; Always make sure the slipper slips before the diff. You can check this by holding
the right rear tire and the spur gear in one hand and then turn the left rear tire. Watch the slipper spring and plate. As you turn the left rear tire
the spring and plate should turn. This means the slipper is slipping before the diff. If the spring and plate don’t turn your diff is too loose or
the slipper is too tight.
If you have ever melted a differential it’s because the diff was too loose and slipping. Always make sure your slipper will slip before the
differential. It will help take some load off the differential and transmission. A good starting point for the slipper is to tighten the slipper nut all
the way down and then back it off 5 full turns. Remember this is just a starting point. After every 1-3 runs check and make sure the diff is still
tight and not slipping. Hold the right tire and the spur gear in one hand and rotate the left tire, as you rotate the left tire, the slipper spring and
plate should turn. This means the slipper is slipping before the differential. If the spring and plate are not turning, your differential is slipping.
You never want the diff to slip, if it does. Loosen the slipper a little and tighten the diff.
To tighten the diff place the 1/16” Allen wrench through both the Slot in the outdrive and Screw. This will lock the diff screw and the
outdrive together. While holding the Allen wrench in place, turn the right rear tire forward about 1/8 of a turn. Check the differential adjustment
again and repeat the tightening process as necessary until the differential is no longer slipping. See "Adjusting the Slipper" on the following
page, and then continue from here.
The final differential adjustment check should be made by placing the car on carpet, grass, or asphalt and punching the throttle. The
differential should not slip (slipping produces a "barking" sound). If it does, tighten the diff in 1/8-turn increments as described above until the
slippage stops. Once the diff has been adjusted, it should still operate freely and feel smooth. If the diff screw starts to get tight before the diff
is close to being adjusted properly, the diff should be disassembled and inspected; you may have a problem with the differential assembly. Refer
to the assembly instructions to ensure that the diff is properly assembled and that all parts are properly seated in the assembly.
There are a few things you should know about differentials. First, when rebuilding your diff, you should always replace the small, diff nut.
Second, after the diff has been run a time or two, it is not uncommon for the balls to seat into the rings and create a slightly loose adjustment.
So, after your first and second runs, check the adjustment to avoid slippage. Third, remember: Never let the diff slip. Doing so can damage the
diff balls, rings, and gear. Always make sure that the slipper will slip before the diff a little at a time till the Diff no longer slips.
SLIPPER ADJUSTMENTS should be done after the diff is properly adjusted. If you have just finished adjusting the differential, loosen
the slipper adjustment nut four full turns (e.g., 360 degrees x 4) to return the adjustment to the setting originally described in the assembly
instructions. To make the final adjustments, place your truck on the racing surface and give the truck full throttle. The slipper should slip for one
or two feet. If the slipper slips for more than two feet, you’ll need to tighten the adjustment nut. If the slipper doesn’t slip for at least one foot,
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